That is correct. gse 7.01 and 7.02 are no longer being sold so they have been pulled from the download sites.
see this kb for more details abount gse 7.x eol/eos
The latest version of groupshield is mcafee security for exchange 8.0 (msme 8) which is what i would recommend downloading and installing on the ex2k10 server. the previous version to that is msme 7.6 patch1 ru1