Just create an account, log in, and select the "Find Designs" tab, then under that select "Agilent Catalog", then there should be a list of the different SureSelect related bed files and whatnot.
Also here is the info from the Agilent SureDesign help site on what the various files you will download from there actually mean:
The three BED-format track files that SureDesign creates for each
custom SureSelect design are described below. You can import these
files into a compatible genome browser to graphically view the
locations of the tracks in the genome. For detailed information on the
tracks and how they can help you analyze your design, see Design
analysis using tracks.
[design ID]_Regions.bed - This BED file contains a single track of the target regions of interest that SureDesign used to select the
probes. You can use this track to see the exact regions that the
program was attempting to cover when selecting the probes.
[design ID]_Covered.bed - This BED file contains a single track of the genomic regions that are covered by one or more probes in the
design. The fourth column of the file contains annotation information.
You can use this file for assessing coverage metrics.
[design ID]_AllTracks.bed - This multitrack BED file includes the following tracks:
- The Target Regions track is identical to the track in the Regions BED file.
- The Covered probes track is identical to the track in the Covered BED file.
- The Missed Regions track contains any regions from the Target Regions track that are not included in the Covered probes track.
- The Probes track contains the regions of all probes in the design.
The three text files for a custom SureSelect design are described
below. You can view these files in any text editor program (e.g.
NotePad) or spreadsheet program (e.g. Excel). Any tables embedded in
the text files are tab-delimited and contain column headers. Lines of
text that start with a # character are comment lines.
[design ID]_Targets.txt - This file contains a list of the target identifiers that you entered when creating the design.
[design ID]_Probes.txt - This file is a list of the probes in the design, with specific information about each probe, including its
probe ID, sequence, genomic coordinates, and the target it is intended
Note that a probe may be listed in the Probes text file multiple times
if it covers multiple targets. This can occur if the target
identifiers you entered map to overlapping regions or are synonyms for
the same gene (e.g. HER2 and ERBB2). Although these probes are listed
multiple times in the file, they are not replicated in the design.
[design ID]_Report.txt - This file contains summary information on the design, the probes, the targets, and the parameters used to create